Home / 52,144.48-78,169.93-18,856.72

Finding the Fourth Proportional to 52,144.48, 78,169.93 and 18,856.72

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Solution

The fourth proportional to 52,144.48, 78,169.93 and 18,856.72 is: 28,268.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,144.48 : 78,169.93 = 18,856.72 : x
  2. Step 2: Convert to fraction form
    52,144.48/78,169.93 = 18,856.72/x
  3. Step 3: Cross multiply
    52,144.48x = 78,169.93 × 18,856.72
  4. Step 4: Simplify right side
    52,144.48x = 1,474,028,482.43
  5. Step 5: Solve for x
    x = 1,474,028,482.43/52,144.48
  6. Step 6: Final answer
    x = 28,268.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.